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. 2020 Nov 30:2020:8810540.
doi: 10.1155/2020/8810540. eCollection 2020.

Cervical Sagittal Imbalance after Cervical Laminoplasty in Elderly Patients

Hyun Woong Mun  1 , Chang Duk Yuk  1 , Tae Hwan Kim  2 , Moon Soo Park  2 , Seok Woo Kim  2 , Ji Hee Kim  1 , Jun Hyong Ahn  1 , In Bok Chang  1 , Joon Ho Song  1 , Jae Keun Oh  1
Affiliations

Cervical Sagittal Imbalance after Cervical Laminoplasty in Elderly Patients

Hyun Woong Mun et al. Biomed Res Int. .

Abstract

Purpose: To determine the effect of age on sagittal cervical alignment after cervical laminoplasty procedure so as to identify the group with the greatest degree of variation. Study Setting. Single-center retrospective chart review in a tertiary referral hospital. Outcome Measures. The sagittal vertical axis (SVA) (C2-7), T1 slope, and cervical lordosis.

Methods: We included patients who underwent cervical laminoplasty between 2014 and 2018 and divided 60 consecutive patients into two groups using the cut-off age of 65 years. The Paired t-test and Mann-Whitney U test were used to compare changes between preoperative radiographic cervical sagittal parameters and those 1 year after surgery.

Results: Mean patient ages in the older and younger groups were 71 years and 52 years, respectively. The difference of C2-7 SVA was greater in the older group.

Conclusion: Postoperative cervical balance can be worse when laminoplasty is performed in elderly patients.

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Conflict of interest statement

All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers' bureaus; membership, employment, consultancies, stock ownership, or other equity interest; and expert testimony or patent-licensing arrangements) or nonfinancial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript.

Figures

Figure 1
Figure 1
Illustration of cervical sagittal balance. Radiographic measurements. C2-7 cobb angle. C2-C7 SVA. T1 slope.
Figure 2
Figure 2
C2-7 SVA increased after cervical laminoplasty (pre-op: 25.9 mm → post-op 36.0 mm).
Figure 3
Figure 3
After laminoplasty, T1 slope, cervical lordosis, and C2-7 SVA tend to increase (pre-op T1 slope: 27.9° → post-op 35.2°, pre-op C2-7 cobb angle: 15.4° →21.4°, pre-op C2-7 SVA 20.16 mm →21.84 mm).
See this image and copyright information in PMC

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